Where: Piura, Peru (4.7° S, 81.3° W: paleocoordinates 12.6° S, 109.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Lomitos Conglomerate Member (Talara Formation), Bartonian (41.3 - 38.0 Ma)
• Regarded as lower Upper Eocene on the basis of faunal similarity. Foraminifera suggest an upper Eocene age. Olsson states that the Talara and Saman rocks can be referred to the Upper Eocene and in terms of the European section, to the Bartonian and Ludian.....respectively? In most places the Talara Formation can be divided into three members, a lower shale (Talara Shale), a middle sandstone (Talara Sandstone), and an upper shale (Pozo Shale). In a complete section the Talara Formation has an average thickness of about 2800 ft. The collection is derived from a sandy basal layer known as the Lomitos Conglomerate in the Talara Shale member, which can reach a thickness of 400 ft or more. From a zone of coarse, black, quartzitic cobbles in arenaceous shales, resting upon eroded Restin shales.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, coarse-grained, pebbly, black, sandy shale
Size class: macrofossils
Collection methods: quarrying,
• No museum repositories are reported, but material may presumably be the AMNH of PRI collections. Because of uncertaintly this field is left ommited.
Primary reference: A. A. Olsson. 1930. Contributions to the Tertiary Paleontology of Northern Peru: Part 3, Eocene Mollusca. Bulletins of American Paleontology 17(62):1-164 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 52528: authorized by Austin Hendy, entered by Austin Hendy on 10.08.2005
Creative Commons license: CC BY (attribution)